Winding machine



5-. E. BORGESON WINDING MACHINE Oct. 13, 1931.

a speets-sheet' 1 Filed Dec.

f mvemar 574/ Oct. 13, 1931. s. EJBORGESON WINDING MACHINE sSheets-Sheet "5 Filed Dec.

Patented Get. 13, 1193!.

TATES SIDNEY ELMER BORGESON, OF CHICAGO, ILLINOIS, ASSIGNOR T0 WESTERNELEGIRIC COMPANY, INCORPORATED, OF NEW YORK, NZ'Y A CORPORATIUN 015 NEWYORK WINDING MAGHINE Application filed December 19, 1928. Serial No.326,868.

This invention relates to winding machines, and more particularly to amachine for winding material spirally upon annular objects.

Winding machines have been found particularly useful in winding wirespirally upon closed annular cores, such as are used in loading coils oftelephone circuits. Such a w1nding machine may consist of a rotarywinding ring and a. spool or shuttle rin which pass through the centerof the core w ile the same is. oscillated about its axis, the wire beindrawn from a stationary supply and woun upon the shuttle and thenapplied to the core in a well known manner.

The primary object of this invention is to provide an improved windingmachine wherein annular articles may be wound with great facility at ahigh speed and with the winding material at all times maintained under asubstantially constant and uniform tension. y

In one embodiment of this invention as applied to a telephone loadingcoil winding machine a spool or shuttle ring and a winding ring aremounted concentrically and in spaced relation for rotation inde endentlyof each other, the rings bein a apted to be interlinked with anannularloading coil core. Carried by the winding ring is a tensiondevice comprising two sheaves, one a fixed sheave and the other amovable sheave carried by a yieldably and slidably mounted member. Thewinding material is guided from the spool ring over a guide blockattached to the winding ring and plurally looped from The guide to theyieldable sheave and over the first sheave to the core. As the windingring is rotated the yieldable sheave will move and thus maintain thematerial being wound under a substantially constant and uniform tension.Due to the doubling or looping of the material between the guide and thecore the movement of the vieldable sheave and consequently theelongationof the spring associated therewith are materially reduced.

Cooperating with the tension devi e to permit the winding of coils at ahigh rate of speed is a friction drive and a manual control thereforwhich provides the operator with accurate control of speeds both duringthe winding of the shuttle with wire and the subsequent applicationthereof to the core to be wound, and also for ositive and smoothstarting and stopping o the mechanism. A motor driven driving diskdrives a friction wheel adapted to be shifted across the face of thedisk to drive the winding mechanism at a predetermined s eed in either aforward or reverse direction y the downward movement of a foot treadle,the direction and speed of the winding mechanism being controlled by ahand lever movable to a plurality of calibrated positions.

Other objects and advantages of this invention will more full appearfrom the following detailed description taken in connection with theaccompanying drawings, wherein Fig. 1 is a fragmentary elevation of awindmg machine embodying the features of this invention, with portionsremoved or in section for the purpose of'more clearly illustratingcertain elements of the'machine;

Fig. 2 is aside view thereof, partly in section;

Fig. 3 is an enlarged fragmentary vertical section taken on the line 33of Fig. 1, showing in detail the winding ring with the improved tensiondevice;

Fig. 4 is an enlarged section on the line 4-4 of Fig. 3, showing indetail the manner of supporting and guiding the shuttle and windingrings during rotation;

Fig. 5 is a vertical detail section on th line 5-5 oflFig. 2; and c Fig.6 is an enlarged section on the line 66 of Fig. 3.

Referring now to the drawings in detail wherein like reference numeralsindicate simsprocket chain 17.

a in line with the horizontal axis of the disc 11, the shaft 26 havingsplined thereto for longitudinal adjustment a friction wheel 21 whichnormally is positioned opposite a recess 22 formed in the frictiondriving face of the disc 11 (Fig. 1). It will be apparent that uponrotary motion being imparted to the disc 11 and then shifting the wheel21 upon the shaft from the recess 22 of the disc and toward theperiphery of the latter, the shaft 20 may be rotated at varying speedsin either direction, depending onthe extent of movement of the wheel 21from the recess and whether it is moved upwardly or downwardly as viewedin Fig. 1.

The friction wheel 21 is shifted by the actuation oil a foot treadle 23and associated mechanism to be presently described. llhe extent anddirection of movement or the wheel 21 inresponse to an actuation of theloot treadle 23 is predetermined by the adjustment of a hand lever 24movable to a pluralit ofcalibrated positions, the movement 0 the foottreadle 23-bein the same for all adjustments of the ban lever forlimiting the s eed of the wheel 21. hub portion 27 of t e wheel 21 isformed with an annular groove 28 into which project at diametricallyopposite points pins 29 (Fig. 1) carried by a forked end of a shiftingever 30 pivoted at 31 to a depending lever 33, in turn pivoted to theframe 13 at 34. Extending from the lever 30, through an arcuate slot 35in the frame 13, at a point intermediate the pivot 31 and the wheel 21is a pin 36 upon which is pivoted one end of a link 37, disposed outsideof the frame 13, the opposite end thereof being pivoted to a pin 38fined to the frame 13 and centered with but at a right angle to thelongitudinal axis of the shaft 20. p The foot treadle 23 is pivoted at41 to the frame 13 and at one end is provided with a serrated portion 42to be engaged by an operators foot. At each side of its pivot 41 thetreadle 23 is provided with an arc-shaped.

portion 43 formed with a similarly shaped "slpt 44 in its forwardvertical face, the longitudinal' center of the slot being coincidentwith the axis of the pivot 41. Interconnecting the treadle 23 and thelink 37 is a link 45 which at its upper end is pivoted at 48 to the linkand at its lower end is provided with a shouldered pin 49 equipped witha slide lug 50 at its left end (Fig. 5) which is adapted to be freelymoved alon the slot 44 from one end thereof to the ot er, the radiantpoint aeamee ends to the frame 13 and the left end of the arc-shapedportion 43 serves to maintain the treadle 23 in its upper normalposition (Fig. 2) in which position through the links 45 and 37' theperiphery of the friction wheel 21 is dispose opposite the recess 22 ofthe friction disc 11 and therefore the shaft 20 will be idle. To insurethat the wheel 21 will stop opposite the recess 22 when the treadle isreleased under the action of the spring 57, a stop lug 58 provided onthe frame 13 is engaged by an adjustable stop member 59 carried by thetreadle 23, the member 59 being equipped with a leather pad 60 to deadenthe impact when the member 59 engages the sto lug 58. Likewise, when thetreadle 23 is epressed the movement thereof is limited by cooperatmgstop surfaces 62 and 63 provided on the frame '13 and the treadle,respectively, to the right of the pivot 41 of the treadle.

To relieve the o erator of the duty of holding the treadle 23 depressedduring a winding operation against the action of the spring 57, a springdpressed v latch 64 carried by the treadle an co-operating with alatching surface 65 formed upon a lug 66 fixed to the frame 13 serves toautomatically hold the treadle in its depressed or operative position asfragmentarily shown in dotted out-- line (Fig. In depressing the treadlc.23 the right hand angular face of the latch 64 first moves intoengagement with a surface 67 ofthe lug 66, the latch 64 moving towardtheleft and com ressing a 5 ring 70 associated therewith an finally latc esunder the latching surface 65. When it is desired vto trip the latch 64the operator depresses a foot treadle 71 carried hy and pivoted at 72 tothe foot treadle'23, the latch 64 which is reciprocably mounted in ahousing 73 formed on the treadle 23 and connected to the treadle 71 by alink 74 is thus moved to the left (Fig. 2) and unlatched fromthe surface65 of the lug 66. The spring 57 then acts to move upwardly the treadle23, thus returning the friction wheel 21 to its normal position by meansof the interconnecting levers and links hereinbefore referred to. Acounterweight 77 is fixed to the right end of the treadle 23 for thepurpose of counter-balancing the action of the spring 57. Cooperatingstop surfaces 78 and 79 upon the treadles 23 and 71, respectively, serveto limit the counterclockwise movement of the treadle 71 relative to thetreadle 23 when withdrawing the latch 64. U on the operator releasingthe foot treadle ?1 after unlatching the treadle 23, the compressedsprin returns the treadle 71, the link 74 and t e latch 64 to theirnormal position, a stop surface on the treadle' 71 engaging a similarsurface on the housing 73.

The left end of the hand lever 24 (Fig. 2) extends between and islaterally guided by arc-shaped plates 83 and 84'fixed to the frame 13.The left end of the lever 24 is formed with a right angular portion 85positioned outside the peripheral surfaces of the plates 83 and 841which extends over the peripheral surface of the plate 8; and is spacedtherefrom (Fig. l). Between'the lever portion 85 and the peripheralsurfaces of the plates 83 and 8 at the upper portions of the latter andspanning the space therebetween is an adjustable arc-shaped stop member86. a similar stop member 87 being positioned at the lower end of thearc-shaped plates. The stop members 85 and 8? aria provided withapertures 88 and 89, respectively, into which is adapted to be entered aspring pressed pin 92 dotted. outline Fig". 2) reciprocable in theangular port-ion 85 of the lever 24 end fixed to a hand grip 93reciprocably carried by the portion 85 of the lever 24. a sprint: {notshown) enclosed in the hand grip con tantly urging the hand grip'withthe pin 92 toward the, right (Fig. 2) therebv holding" the hand lever 24in a predetermined position with respect to either of the stop members88 and 8?. The outer side of the arc-shaped plate 83 (Fig. isprovided'with two sets of indices 9e and 95 reading upwardlv anddownwardly. respectively. each beginning at a common point or markintermediate the ends of the plate. Indicating marks 96 and 9? upon theouter side faces of the stop members 86 and 87, respectively. serve tofacil'tatethe adjustment of the stop members alone the peripheral facesof the plates 83 and 84' to predetermined positions w th respect to theindices 94 and 95, respectively. for a purpose which will be madeapparent hereinafter. Bolts 100 serve to secure the stop members 86 and87 in their adjusted positions. the shanks of the bolts extending intothe space between the plates 83 and 84 and at their inner ends areprovided with lateral extensions 10]. (Fig. 2) for engagement with theinner curved faces of the plates 83 and 84. The outer ends of the shankportions of the bolts 100 are shouldered and threaded for the receptionof clamping nuts and washers 102.

' be more fully described hereinafter.

The operation of the friction drive and of the manual control therefor,hereinbefore described, for driving the shaft 20 at varyingpredetermined speeds in either direction is as follows: With thefriction disc 11 being driven through the motor drive hereinbeforediscussed and the hand lever 24 in its upper latched position, as shownin full outline in Fi g. 2, the link 45'will be positioned as shown tothe left of the pivotal point 41 of the foot treadle 23. Upon adepression of the treadle until the stop members 62 and 63 engage, thelink 45 through its connection with the left end of the treadle, willmove downwardly therewith and draw with it the right end of the link 37,the opposite end pivoting about the pin 36. The movement downwardly ofthe link 37 rocks the shifting lever 30 soon terclockwise about itspivot 31 and shifts the friction wheel 23. from itsnorme-l positionopposite the recess .22 of the disc it downwardly into engagement withthe driving sun face of the disc below the axis thereof. The

shaft 20 will therefore be. rotated in one dimaximum distance toward theperiphery of the disc and thus the shaft 20 will be rot-eted at amaximum speed. Upon the stop surfaces 62 and 63 engaging as hereinbeforedescribed. the latch 6% moves under the latch ing surface 65 and thetreedle 23 will be held in its depressed position without any effort ofthe operator. To return the friction wheel 21 to the recess 22 of thedisc 11 the operator trips the latch 84 and the treadle 23 with theassociated lever and link mechanism under the action of the spring; andcounterweight 77 are returned to their normal position (Fig. v

To cause a rotation of the shaft 20 in a reverse direction to that justdescribed, the op erator first draws the spring pressed pin 92 from theaperture 88 of the stop member 86 by drawing outwardly on the hand grip93 and thereafter rocks the hand lever 2% about its pivot 51 by pressingdownwardly on the the lower stop member 87 the pin 92 then springinginto the aperture 89 of-the stop member 87. This latter movement of thehand lever 24 will shift the arm 52 thereof along the slot 44 to a pointat the right of the pivotal point 41 of thefoot treadle 23 carrying withit the link 45. the latter merelv pivoting about the point 48 withoutchanging: the position of the link 37 or other members of the mechanism.Wit-h the hand lever 24 and the link 45 positioned as just deall Jrscribed and upon a depression of the foot treadle 23 to its latchingposition in a manner as hereinbefore described, the link 45 will bemoved upwardly, since the right end of thetreadle was moved upwardly.The upward movement of the lin 45 moves the right end of the link 37upwardly and rocks the shifting lever 30 clockwise about its pivot 31and thus shifts the friction wheel 21 from its normal position oppositethe recess 22 of the disc 11, upwardly into engagement with the drivingsurface of the disc above the axis thereof. It willbe apparent that theshaft 20 will now rotate in a direction reverse to its direction ofrotation when the wheel 21 is positioned below the axis of the disc 11as hereinbefore described.

Since the stop member 87 is positioned upon the plates 83 and 84 at apoint which will permit the hand lever 24 to be rocked downwardly amaximum distance, the link 45 likewise will be shifted to the right ofthe pivotal point 41 of the treadle 23 a maximum distance and thereforethe wheel 21 will be shifted across the disc 11 and close to theperiphery thereof and consequently the shaft 20 will be rotated at amaximum speed.

it will be apparent that the shaft 20 may be rotated at identical orditlerent predetermined speeds in either direction by merely adjustingthe stop members 86 and 87 along the plates 83 and 84, which adjustmentsare facilitated by the indiccs 84 and provided ,on the plate 83 and theindicating marks 96 and 97 upon the members 86 and 87.

As previously mentioned, the shaft 20 serves to drive the windingmachine elements comprising a rotary winding ring 107 and a spool. orshuttlering 108 mounted concentrically in spaced relation side by sideand arranged to rotate either independentlyor as a unit, as will beexplained hereinafter. The rings 107 and 108 are each rotatablysupported upon and laterally guided by an independent set ofridlerrollers 109 and 110 (Fig. 4), respectively, 'ournaled upon ball bearings111 supported y'side frame members 114 and 115, respectively, fixed attheir base portions to an inclined surface 116 of a housing 117 mountedupon the upper surface of the bench top 10. The inner peripheral surfaceof the winding ring 107 is provided with gear teeth 118 and at eitherside of the latter are annular tracks 119 engaged by the rollers 109,each of which is formed with an annular channel 120 for the purpose ofclearing the teeth 118.

The shaft, referring to Figs. 1 and 2, extends upwardly through thebench top 10 and the housing 117 and into an auxiliary housing 123carried by the side frame member 114. To the upper end of the shaft 20is fixed a spiral pinion 124 which meshes with a spiral gear 125 fixedto a horizontal shaft 126 journaled in the side frame member 114 and thehousing 123. The left end of the rings 107 and 108 is for the purpose ofposil tioning the rings in a convenient position for removing removablesegments thereof so that a closed core 131 may be interlinked therewith.

in F 3 and -6 is illustrated the removsurfaces 138 (Fig. 6) provided onthe ring 107 at opposite ends of the segment. The ends of the segment132 overlap the latch surfaces 138 of the ring 107 as indicated at 139,which overlapping taken with the latch members and surfaces 133 and 138,respectively, it will be apparent, securely lock the segment fromrelative movement in all directions on the ring 107. Guide pins 140(Fig.

6) fixed to the ring 107 at opposite ends of the segment 132 cooperatingwith apertures formed in the segment serve to facilitate the removal andreplacement of the segment from and on the ring. The latch members 133are each provided with finger grip apertures 141 for manipulating themembers when removing or replacing the segment 132.

To wind the winding material, which may in one form be a wire 142 (Figs.3 and 4), on the spool ring 108 in preparation for the windingoperation, the spool ring is clutched to the winding ring 107 by meansof a reciprocable shouldered spring pressed pin 143 cooperating withwhich is a pivotal spring pressed latch 144, the pin and the latch beingmounted in the ring 107 (Fig. 3). Upon pressing the pin 143 inwardlyfrom the outer side surface of the ring 107 and against the action of acompression spring (not shown) inclosed in the ring, an intermcdiateportion of the pin is latched under the latch 144 with an inner reducedend of the pin entering a depression provided in the opposed face of thespool ring 108, which Was previously aligned with the pin by revolvingthe spool ring 108 by hand. ltt will be apparent that upon connectingthe driving mechanism to the winding ring 107, as

previously described the spool ring. will also be rotated and viouslyits direction of rotation when the wire 142 is being wound thereon is ina direction opposite to that in which it will revolve when the wire isbem unwound therefrom by the winding ring 1 during its application tothe core 131., to be more fully described hereinafter. When a supply ofthe wire 1&2 has been wound on the spool ring 108 the latter isunlatched from the winding ring 107 by rocking the latch 14Acounterclockwise (F1 3) about its pivot 1&8 by pressing upon a ngerpiece 14.9 integral with the latch and disposed within the peripheriesof the rings and 108 and between the opposed. inner side faces thereof.This movement of the latch 1 1d releases the pin 143 and the springpreviously men: tioned acts thereon, withdrawing the reduced inner endthereof from the cooperating depression in the spool ring 108.

The core 1 1 to be wound is held in a plane parallel to the inclinedsurface 116 oi the housing int by clamp members 156 and 151 mounted upona standard 152 fixed to a shaft 153 suitably journaled in a bearingcar-- ried by the housing 11? in such way that the core may beoscillated about its axis during the winding operation to guide the wireM2 which is being applied to the core 131 through a semi-circumferencethereof The standard 152 may be oscillated by hand or preferably bygearing (not shown) interconnecting the shaft with the shaft 153. Whenone-half of the core 131 has .loeen wound, it may he removed. from theclamping members and 151 and turned around, whereupon the other half maybe wound in the same manner. Since the means for holding the core 131and oscillating it during the winding operation form no part of thisnovention, a detailed description and disclosure thereof are not deemednecessary to a full understanding of the features of this invention.

Referring particularly to Fig. 3 it will be noted that the wire 142 willbe withdrawn from the spool ring 108 in the operation oi winding thecore 131 at anon-uniform rate since the segment of the core around whichthe wire is being wound at any instant is not concentric with thewinding and spool rings 10? and 108, respectively. Because of this,there is a progressive acceleration and retardation of the spool ring108. The resistance of the weight of the spool ring 108 to thisacceleration results in an intermittent tension on the wire 142, whichvaries with the weight of the spool ring and is proportional to thesquare of the speed of winding and therefore tends to set a verydefinite limit to the speed of winding. To overcome the limitations tothe speed of =ni inherent in this general type of winding machines'theimproved tension device hereinbefore mentioned and carried by thewinding ring 107 is provided, which comprises the following mechanism.

threaded into the member and enga ing the inner side face of the windingring 167 integral with the supporting member 155 at opposite endsthereof are laterally extending wire guides 159 and 160. Preparatory tothe actual core winding operation the free outer end of the wire 1 212is guided from the spool ring across the space between the spool answinding rings 1G8 and 10?, respectively under the guide 159, throughslot or aperture 163 (Fig. 3} therein to the outer peripheral surfacethereof and along an oblique groove 164 formed the outer peripheralface-oithe guide 159 to a similar groove 165 provided in the guide 160.From the groove 165 the wire 1422 is guided through the space betweenthe opposed inner walls of the rings illl'and 108 and looped around asheave 166 journaled upon a yieldably and slidably mounted member 16 2',the sheave being arranged with respect to the rings 107 and 168 in amanner similar to that of the sheave .157 previously mentioned. Themember 16? is provided with dove tailed side faces freely slidable alongthe dove tailed opposed inner walls of the channel 156. Attached to oneend of the slidable member 167 is one end of a comparatively long coiledtension spring 170 lying in the channel 156 of the ring 16?, theopposite end of the spring being secured to a screw 171 threaded intothe inner side face of the ring. After being looped around the sheave166 as hereinbefore mentioned the wire 142 is looped around the sheave15'? and the end of the wire is then fastened to the core 131.

1n the operation of Winding the core 131 the winding ring 107 rotates inthe direction indicated by the arrow (Fig. 3), which, as hereinbeforementioned, is in a direction reverse to that of the spool and windingrings 108 and 107, respectively, and as the sheave 166 travels away fromthe core 131, beginning at a point to the left of the core, as viewed inFig. 3, the sheave supporting member 167 slides in the channel 156 andelongates the spring 170, due, it will be apparent, to the pull on thewire 142 being wound as the sheave moves away from the core. This pullon the wire M2 imparts tension thereto, and as the sheave 166 travelsaround and approaches the core again the sprin 170 contracts and pullingthe member 16 with the sheave 166 thereon takes up any slack tending toterm in the wire as the sheave approaches the core 131. The plurallooping of the wire 14% between the guide 160 and the core 131consisting of looping it around the yieldahle and slidable sheave 166and then looping it around the relatively fixed sheave 157 provides amotion to the slidable sheave 16613 which is more nearly simple harmonicsince toe movement of the sheave and the elongation of the spring 170 isreduced to a mini mum. This action it will be apparent imparts asubstantially constant and uniform tension to the wire 142 being woundto maintain taut at all times, but without delet rious effect thereon.

lit is believed from the description herein: hetero given of theoperation of the friction drive and the manual control therefor ordriving the spool rings one of the wire tensioning device carried by thewinding ring no further descri tion of operation Oil these cooperatingdevices will he necessary,

lt will be obvious from the accurate control of speeds and ease ofreversing the direc-= tion of rotation of the rings both during thewinding of the spool ring with a supply of wire and the subsequentapplication thereof to the core to be wound, by the winding ring,attorded by the friction drive and the manual control therefor, whichalso provides for positive and smooth starting and stoppingo't thewinding mechanism, taken with t e substantially constant tensionimparted to the wire as it is wound on the core by the improved tensiondevice that annular objects, such as coils, may be wrapped or wound withgreat facility at a high speed and without any deleterious efiectsthereon.

V W hat is claimed is:

1. In a machine for winding strand material around closed cores, arotary spool ring and a winding ring, each having a segment removable ina direction parallel to the axis of the ring to permit the interlinkinof the ring with the core, and latch mem ers reciprocably mounted withinthe segment, each of the latch members cooperatin with a latch surfaceformed on a portion of t e rin which extends within and overlaps each enof the segment for locking the segment to the ring.

2. In a machine for winding strand material around closed cores, arotary spool ring and a winding ring, each having a segment removable ina direction parallel to the axis of the ring to permit the interlinkingof the ring with the core, latch members reci rocably mounted within adepressed guideway of the segment, each of the latch memberscooperatnannies my name this 8th day of December, A. 1D.

SIDNEY ELMER BQRGESQN,

e latch surfaces of i

